package com.guoyu.gserv.dao.hibernate;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class MD5 {
	public String Md5(String plainText ) {
		  try {
		   MessageDigest md = MessageDigest.getInstance("MD5");  

		   md.update(plainText.getBytes());
		   byte b[] = md.digest();

		   int i;
		   
		   StringBuffer buf = new StringBuffer(""); 
		   for (int offset = 0; offset < b.length; offset++) {
		    i = b[offset];
		    if(i<0) i+= 256;
		    if(i<16)
		     buf.append("0");
		    
		    buf.append(Integer.toHexString(i)); 
		   }
		   return buf.toString();
		  } catch (NoSuchAlgorithmException e) {
		   // TODO Auto-generated catch block
		   e.printStackTrace();
		   return null;
		  }
		  
		 }
}
